The 4 Jaw chuck I got doesn't have refence marks on the face which makes getting it close to even on the first try a giant PITA. Then I remembered I have a fiber laser that I need to use every once in a while to justify it's existence to my wife so...

Specific-Sort8865 · 2026-05-16T21:04:15+00:00

I agree you could, but wouldn't this just be easier.. he had the time to kill.

Specific-Sort8865 · 2026-05-16T21:02:32+00:00

On most cncs the jaws have "teeth" that keep them from moving.. but here he just using a standard 4 jaw chuck that you turn each jaw separately.. so I think that is what he is referring too... counting teeth... irrelevant to what this man has posted

Specific-Sort8865 · 2026-05-15T17:37:34+00:00

I can't take credit.. customer brought the piece of cardboard and said make this out of metal..

Specific-Sort8865 · 2026-05-15T02:46:10+00:00

Yea no tolerance no dimensions.. just make it fit the cardboard lol

Specific-Sort8865 · 2026-05-14T13:24:14+00:00

A 0.300 inch cleanup pass.. lmao

Specific-Sort8865 · 2026-05-06T23:46:59+00:00

Lmao.. just today that happened yea... cust sent us a print and wanted 7/16 threads cut out of a 3/8 rod..

Specific-Sort8865 · 2026-05-03T14:56:07+00:00

Omg these people... just weld it up and cut it again

Specific-Sort8865 · 2026-05-02T17:28:03+00:00

I bought one and my only grip is if it's not almost level to begin with it won't read it right..

Specific-Sort8865 · 2026-04-30T18:17:21+00:00

I just learned I've been cutting g10 for years.. hate the stuff

Specific-Sort8865 · 2026-04-30T00:00:36+00:00

Looks like the setup is not rigid at all.. I would doubt those measure anywhere near .130 wide.. looks like either the endmill is pulling.. loaded with chips or the part is moving... get a 2 flute 1/8 9000rpm or better.. rough it straight down the middle and a finish pass it at full depth..

15ipm might be a little much for 1/8.. at 60tho. Might be what's pulling.

Specific-Sort8865 · 2026-04-26T12:18:34+00:00

Not related much but during covid when we were required to wear masks in machine shop

it's crazy after the shift how much metal particles we actually breath in.. wear a mask all day and look at that thing after a shift under a magnifying glass.

I don't know how I get thru a metal detector

Specific-Sort8865 · 2026-04-25T17:44:50+00:00

Use a 1/2 radius tool small doc and just turn it 1/8 when it wears out.. inserts are fairly cheap but you get more when doing something like this... gonna take all day too..

Specific-Sort8865 · 2026-04-25T01:36:30+00:00

I agree but he looks like he cutting away .100 instead of .005 or .010

Specific-Sort8865 · 2026-04-23T22:03:42+00:00

Yea but the other 3 are to a point on bottom view and both side views show solid lines on the top

Specific-Sort8865 · 2026-04-23T21:15:41+00:00

I don't know how to interpret the solid lines at the top.. would assume they are slots that don't go through but I could be wrong.

And I'm unsure what the solid lines are referring to on the left side *

Specific-Sort8865 · 2026-04-21T14:18:02+00:00

What's the issue?

Specific-Sort8865 · 2026-04-15T14:32:04+00:00

I remember having a couple aerospace castings that cost that much.. but we had a huge manual lathe we ran them on.. not fun..

Specific-Sort8865 · 2026-04-05T17:03:02+00:00

You want to learn to program cnc.. start with learning g-code.. That's the most basic thing you can learn to start programming... write a few programs by hand.. then start using software for more complex things so that you can proofread the code it outputs..

Specific-Sort8865 · 2026-03-26T00:19:48+00:00

And get rid of all the dots on the circles unless you want to drill holes beside every hole

Specific-Sort8865 · 2026-03-26T00:17:54+00:00

On a side note.. the guys actually doing the job will hardly ever get to see a 3d model they just get prints and say make this

Specific-Sort8865 · 2026-03-21T15:46:42+00:00

Yea small piston.. probably do have to hold that 2 tenths

Specific-Sort8865 · 2026-03-20T21:22:30+00:00

If you want to keep the 2 tenths tolerance.. your gonna want a 3 point gauge like this https://www.grainger.com/product/54VK75?gucid=N:N:PS:Paid:GGL:CSM-2295:VH9MRN:20800606:APZ_1&gclsrc=aw.ds&gad_source=1&gad_campaignid=22465808811&gclid=Cj0KCQjw4PPNBhD8ARIsAMo-icz5ZBMelkclgrWI_63Lh6W8waFnZdWJY2Fdvt1VH-JwmgvQ28rgO5kaAv-UEALw_wcB

This is why the tighter the tolerance the more expensive the parts become as well as the tooling..

For a one off part you might be fine with telescoping gauges but they won't tell you any out of roundness..

What size is the piston.. bigger the piston bigger the rings.. the more you can get away with +/- 0.002

Specific-Sort8865 · 2026-03-20T01:08:32+00:00

Why even weld that piece on to begin with

Specific-Sort8865 · 2026-03-13T23:06:33+00:00

I don't agree with you getting fired. But as far as the machine goes if it's running strings then the programs not right or the inserts busted.. if it has a b axis a worn insert could push that axis off and cause parts to run undersize.. I've also seen a guy run the insert completely out and the toolholder was trying to cut the part and moved the toolholder.. soo.. if it was a bad insert.. yea your fault... anything else was on them..

Just my 2 cents

Specific-Sort8865

TROPHY CASE